The Luftwaffe could never have won the Battle of Britain.
In terms of the quality and quantity of equipment and pilots, Germany and Britain were on a relatively even playing field. Germany’s failure to overcome the RAF was ultimately a result of British radar, mistaken changes in strategy and Göring’s weak leadership.
The Battle of Britain saw the end of German bombing over Britain.
Though the 31 October 1940 saw the generally accepted end of the Battle of Britain, the Luftwaffe continued to bomb Britain for several more years. Most intensively was the bombing of London and other major cities in the Blitz, the dates of which stretch from 7 September 1940 to 10 May 1941.
Hitler’s insistence that the new Messerschmitt 262 should be designed for offensive use as a bomber, rather than defensive use as a fighter, severely delayed its introduction.
It was, in fact, technical issues with the new jet engine that prevented it from reaching operational status until the summer of 1944.